Quartering and thirding attachment



Sept. 4, 1928. 1,683,290

A. C. GOUGH ET AL QUARTERING AND THIRDING ATTACHMENT Filed Ju ne 30, 1927 2 Sheets-Sheet 1 Sept. 4, 1928. 1,683,290

A. C. GOUGH ET AL QUARTERING AND THIRDING ATTACHMENT Filed June so, 1927 2 Sheets-Sheet 2 a, wav r:

Wilkes (Zwrmr/un Patented Sept. 4, 1928.

UNITED ST EES eane FATENT f ARTHUR C. GO'UGI-I AND 'VLADIMIR CHARUSHIN, FITCY-IBURG, MASSACHUSETTS, ASSIGNORS, BY ASSIGNMENTS, T0 SHAW" GRANE-PUTNAM IViACE-IINE COD/L ?ANY, INC, A CORPORATION OF DELA'WARE.

QUARTEBING- AND THIRDING ATTACHMENT.

Application filed June 30, 1827. Serial No. 202,719.

This invention relates to a special type of machine tool used for finishing the pins and boring the pin holes of locomotive drive wheel sets.

The principal object of the invention is to provide tool holding and locating attachments for such a machine by which the s0 called quartering, well known in this ndustry, can be done and also thirding, which requires setting the attachments two positions, either 90 or 120 apart, without dismounting or replacing any of the elements. The invention also involves features of construction by which the machine can be used for both of these purposes and theprinciple can be applied for finishing at other angles.

Reference is to be had to the accompanying drawings in which y Fig. 1 is aside elevation of a machine for the above-mentioned purposes provided with a compound quartering and third ng attachment set up for boring a. three cylinder locomotive drive wheel set, parts being shown in section on a vertical central plane;

Fig. 2 is a fragmentary view showingthe ordinary pin turning attachment which 18 used with this invention; d

Fig. ,3 is an end elevation otthe tail stock showing the quartering andthirding attachment lowered for thirding; and

Fig. i is a sim lar view showing tachment raised for quartering.

The quartering machines of the lathe type for the purpose of machining locomotiye driving wheel sets of the ordinary type in which the two settings are 90 apart are well known. The three cylinder type of iocomotive is used to some extent. ()ne of the axles on this type of locomotive has a crank pin in the center with the journals on eaph side between the crank and the wheels. in order to turn the pins, the setting has b0 be changed from 90 to 120. For the pur pose of boring also the same change has to be made.

the at- This invention is designed, as stated, to provide for the setting of the attachment at 30 from the point of first setting and also to provide a construction in which the quartering can be done on the same machine and with the same attachment with no different operation except that the adjustments are made in a different order.

This attachment consists of two separate units, one attached to toe head stocli and the other attached to the tail-stock. With this attachment wheel sets having a right-hand lead only, can have both wheels bored or pins turned simultaneously. It wheel sets with a ieft-hand leadsiare tobe handled, then each pin hole or pin must be machined separateiy. A wheel setconsists of two wheels on a shaft. The hole to be bored or pin to be turned on one wheel is not mounted inline with that on the other but set off to one side. hard lead and. on the other side right hand. lead.v

iVc have shown the invention as applied to a machine capable 0t performing both the above mentioned operations in which the taii-stocl: 12 is adjustably mounted on a bed 10. he head-stock 11 is also mounted on tne bed as usual, but the invention is shown as applied to the taii-stocln Journalled in the headstock is a faceplate 13 whichhas a live center 1% which can be moved back and forth, in the usual Way in order to be placed in and removed from operative position. The tail-stock 12 is provided with a dead center 16 aiso'adjusted in the usual way. In Fig. 1 we have shownthe two centers 14 and 16 in operative position supporting a uriving wheel set shown in dotted lines. The cutting that is to be done on the driving wheel set, as shown, is the boring peration but the turning is also done with the same settings. The boring is performed by two boring tools 15 and 17, thei ormer of which passes through an elongated hole 18 in. the face plate and the latter of which supported by an out board bearing not shown. Both of them are driven in well known ways for performing their usual operations. We wiil not describehere the On one side "it is called left construction and adjustment of the headstock or tail-stock or the means for driving the same. They can be arranged as shown in Patent No. 1,522,674, granted January 13, 1925 to E. L. Fickett or in any other way desired. I

It will be understood that the head-stock is manipulated generally as in Said patent and that the machine isshown as set up for boring. he unit attached to the headstock is mounted directly over the center of the main spindle with vertical adjustment to theboring bar for different stroke pin holes. Theboring bar passes through an elongated hole in the face plate and is supported by an adjustablebearing fastened to the face plate not shown. The same mechanism is used for crank pin turning and burnishing, but in that case other well known elements are used, including a turning tool 20 as shown in Fig. 2. The main difference between this machine and the one shown in said F ickett patent is that here the tail-stock attachment can'be set in two positions which permit adjustment for length of engine stroke along two definite planes, either 90 or 120 fro-m the plane of adjustment of the head-stock attachment. The boring and turning operations are per formed in the same way and by the same mechanism on both machines. The tool for boring orturning is adjusted as to position and is driven by the usual means from motors 21. I

On the side of the tail-stock is fixed a bracket'23 or it may be made integrally desired. It is regarded as static-nary as it moves only when the tail-stock is adjuster bee: and forth onthe bed. On its upper surface it has a guide 2&- in the form of ways or the like inclined at an angle. This particular machine is designed for thirding and involves the placing of the tool at an angle of below the horizontal to provide for operating at 120 from the vertical. This guide therefore is made at an angle of 30 to the horizontal, slopin upwardly to ward the centers but not in line therewith.

On this guide is placed an angle block 25,

block 25 is a guide or ways 22 arranged in horizontal position and carrying slidab ly thereon a frame made up of two sides 29. This frame has vertical ways on which move guides 30 on which is a movable tool locat-' ing attachment 31. This attachment is pro vided with nuts 32 at its opposite sides into which extend vertical screws 33 which, by bevel gears 34, are connected with a hori zontal shaft 35 on which is fixed a hand wheel 36. By the rotation of this hand wheel the attachment 81 can be moved up and down on the frame 29. This frame is provided'with two steps 37 and 38 for limiting the motion of the attachment 81. The attachment is provided with a guide pas sage 39 for the boring bar.

The angle block 25 is provided with a positive stop 40 for limiting the motion of the frame 29 horizontally toward the work while the tail-stock itself is provided with a positive stop ll for limiting the motion of the angle block 25 in the direction toward the work. The frame 29 is moved back and forth on the guides 28 by two screws 42 passing through nuts 43 fixed to the frame and operated by bevel gears 44. These bevel gears are located on a cross shaft 46 supported by the angle block 25 and a ratchet wrench 47 on that shaft is used to turn the shaft and to adjust the frame 29 toward and from the work. i

In operatiomif a two cylinder locomotive. drive wheel set is to be quartered the ad justments are to be made in the following order. The attachment 81 is raised by operation of the hand wheel 36 until it comes to a limit against the positive stop 37. It is then clamped in position by screws 50. The angular block 25 is then moved forward by operation of the hand wheel 27 to carry the bloekup the incline against the positive stop on the base and then clamped in position by screws 51. The parts are then in the position shown in Fig. 4.

It will be seen that with this device applied to the taihstock and the machining at the head-shock being done on the circle 52 vertically above the center, the machining at the tail-stock end will be done at 90 therefrom through the center of the passage 39 in Fig. 1-. The adjustment for the length of stroke is made by moving the frame 29 by means of the; ratchet wrench 47 toward and from .the center line of the work.

It will be seen that, as the passage 89 and the work centers are on the same horizontal idtl axis, at 90 from the line between the centers and the center of the circle 52 this adjustment will'take place without changing the angularity. Furthermore, on account of the two positive stops, there is no necessity for any fine adjustment, except for the distance between the centers and the axis of. the boring bar centered in the passage 39.

In the case of a three cylinder locomotive, a thirding operation is desired to make the two machining actions at 120 apart around the work centers. For this purpose the attachment is first lowered by turning'the hand wheel 86 in the opposite direction until theattachment 31 comes up against the stop 38. The attachment is then clamped as before. Now the frames 29 are moved forward by the ratchet wrench 4:7 to the positive stop 40 on the angle block 25. Then the frames are clamped in position by screws 53. The parts are now in the posiion shown in Fig. 3. i

It will be observed that no fine adjustments have been required and that the parts are merely brought up against positive stops and there clamped. The adjustmentfor the length of stroke is made by movingthe angle block 25 along the ways 24 by means of the the distance between the axial line of the centers and the center of the passage 39. This determines the stroke in this case.

It will be seen that by these means both quartering and thirding can be accomplished on the same machine and without change in the parts. The parts do not have to be taken oli or disconnected to perform the two difi'erent operations but they merely have to be manipulated in a different order and clamped in different places.

It will be understood, although the mostpractical use of this invention known tone is in the quartering and *thirding of locomotive drive wheel sets and the'only angles required for that particular purpose are those specifically shown, yet the same prin ciple can be applied where other angles are required. In that case the angle 01 the block 25 orits angular relation with the frame 29 will be changed in accordance with the particular angle of the work. The final adjustment of the stroke is parallel to a line between the centers on which the work is supported and theaxis of the metal working tool. It will also be understood that this machine, with this attachment is adapted to be used for both boring and pin turning and also to be'used for trailer sets without necessarily dismounting, or interfering with, these parts that have been described.

Locomotive drive wheel sets having a right hand lead only,-can have both wheels bored simultaneously or both pins turned simultaneously. IVhen wheel sets with left hand,

leads are to be operated upon each pin hole or pin must be machined separately. The particular characteristic of this attachment is that it is adjustable-vertically and horizontally in independent ways and provided with means whereby the stroke can beadjustcd by a separate adjustment along the line of the centers, as described. Thus it can do quartering with adjustment along a horizontal plane and thirding with adjustment along a plane at 30 to the horizontal..

These adjustments, in each case, are 'made after the tool is otherwise set.

Although we have illustrated and described only a single form of the invention we are aware of the fact that modifications can be made therein by any person skilled in the art without departing from the scope of the invention as expressed in the claims. Therefore we do not wish to be limited to the details of construction otherwise than as set forth in the claims, but what we do claim is:

1. In a metal working machine, the combination with a pair of centers for supporting the work, metal working means adjacent to one center and offset therefrom for operating on the work at that end, and means adjacent to the other center andotlset therefrom ina diiierent direction for operating on the work at that end, of an attachment for holding the second means, adjustable in two directions, to permit change'in the positions around the centers at which the work is done. I

2. In a metalworking machine, the combination with head and tail centers for supporting the work, and means adjacent-to a center for machining the work at thatend,

of means for holding and locating a second machining means oil center at the other end, and means for adjusting-the holding means horizontally and vertically, independently of each other, whereby the last named machining means can be brought into a desired having a center in alignment with each other for supporting the opposite ends of the work, a metal cutting toolmounted to turn on an axis parallel with the axis of said centers at a distance therefrom, an attachment for supporting said tool, and means for adjusting saidattachment to permit of the operation of the tool either at an angle of or at an angle of from a given point, and means. for ad usting the attachment in a direct line.

toward the axes of the centers in either one of its positions.

I. In a metal working machine for operat ing on locomotive driving wheel sets and the like, at opposite ends, the combination with head and tail centers for supporting a set, and means adjacent to acenter for-machining the work at that end, oi means for holding and locating a machiningmeans ofl' center at the other end, and meansi oi' adjusting the holding means horizontallyand vertically independently of each other, whereby. the machining means can be brought into horizontal alignment with the centers and held in alignn'ient while being adjusted toward. and from the work, or into'a position not in horizontal alignment with the Icenters and held at a constant angle thereto while being adjusted toward or from the work along that angle.

5. In a machine for finishing'wheel sets,

the combination with a pair of centers for centers, and means adjacent to the other center for operating on the set at that end at a point in a different angular position, of an attachment for controlling the location of tween the two points atwhich the work is.

done. r

6. In a machineofthe character described, the combination with a center for supporting the work at one end, of an attachment for controlling the position of a metal working tool, a guide at a definite angle to the horizontal, a block having an inclined bottom, resting on and'adjustable along said guide, and having horizontal waysat its top, a frame adjustable along said ways and having means for supporting the tool, and means for. adjusting the attachment vvertically to two limiting positions.

7.- In a quartering and'thirding machine for locomotive driving wheel sets, the combination with a center for supporting the work at one end, of an attachment for controlling the position of a metal working tool, a guide at 30 to the horizontal, a block having a 30 bottom resting on and adjustable along said guide and having horizontzways at its top,a frame ust-able along said ways, and means for adjusting the attachment vertically. r

8. In a q'uartering and thirding machine for driving wheel sets, the combination with a head and tail stock, each having a center for supporting the sets" at their ends, of a support provided with a guide extending upwardly at an'angleof 30 toward said centers, an angular block having a bottom surfacelocated parallel with said guide and resting thereon and its top surface horizontal, means for ad ustmg the block up and down the inciine, means for clamping the blockin adjusted positions, a stop for pre venting the movement of the block toward the centers beyond a certain point, the block having horizontal guides along its upper surface, a frame adjustable along said horizontal guides toward and from the centers, and an attachment carried by said frame and having a guide for a metal working tool parallel with the axis of the centers, saidjusted..

support provided with a guide extending upwardly at an angle, an angular blockhaving a-bottom surface located, parallel with said uide and restinmthereon means for'ad-- b b 3 justing the block upland down the incline, guides along its upper surface, a frame movable along said guides towardand from the centers, screw means for adjusting the frame toward or from said centers, a stop on the block for lnnitmg the'motion of the frame their ends, of a support provided with a guide extending upwardly atan angle of 30, an angular block havinga bottom surface located parallel with said guide and resting thereon, horizontal guides along its top surface, means for adjusting the block 'up and down the incline, means for, clamping the blockin adjusted positions, a stop forpreventing the movement of the block toward the centers beyond a certain point, frames movable along said horizontal guides toward and from the centers, screw means for simul-T taneously adjusting theframes toward or from said centers, a stop 1011 the blockifor limiting the motion of the frames toward the centers, an attachment carried by said frames and having a guide for a metal work ing tool parallel with the axis of'the centers, means for adjusting the two ends of said attachment verticaiiy, stopson said frames for limiting the attachmentin'its upper and lower positions, and means for clamping the attachment in positions to which it is ad-' In testimony whereof we have hereunto afiixed our signatures.

ARTHUR o. GOUGH. VLADIMIR OHARUSHIN; 

